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From: Jeff Layton <jlayton@kernel.org>
To: ceph-devel@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org, linux-fscrypt@vger.kernel.org,
	lhenriques@suse.de
Subject: [RFC PATCH v6 00/20] ceph+fscrypt: context, filename and symlink support
Date: Tue, 13 Apr 2021 13:50:32 -0400
Message-ID: <20210413175052.163865-1-jlayton@kernel.org> (raw)

The main change in this posting is in the detection of fscrypted inodes.
The older set would grovel around in the xattr blob to see if it had an
"encryption.ctx" xattr. This was problematic if the MDS didn't send
xattrs in the trace, and not very efficient.

This posting changes it to use the new "fscrypt" flag, which should
always be reported by the MDS (Luis, I'm hoping this may fix the issues
you were seeing with dcache coherency).

This unfortunately requires an MDS fix, but that should hopefully make
it in and be backported to Pacific fairly soon:

    https://github.com/ceph/ceph/pull/40828

We also now handle get_name in the NFS export code correctly.

Aside from that, there are better changelogs, particularly on the
fscrypt and vfs patches, and some smaller bugfixes and optimizations.

Jeff Layton (20):
  vfs: export new_inode_pseudo
  fscrypt: export fscrypt_base64_encode and fscrypt_base64_decode
  fscrypt: export fscrypt_fname_encrypt and fscrypt_fname_encrypted_size
  fscrypt: add fscrypt_context_for_new_inode
  ceph: crypto context handling for ceph
  ceph: implement -o test_dummy_encryption mount option
  ceph: preallocate inode for ops that may create one
  ceph: add routine to create fscrypt context prior to RPC
  ceph: make ceph_msdc_build_path use ref-walk
  ceph: add encrypted fname handling to ceph_mdsc_build_path
  ceph: decode alternate_name in lease info
  ceph: send altname in MClientRequest
  ceph: properly set DCACHE_NOKEY_NAME flag in lookup
  ceph: make d_revalidate call fscrypt revalidator for encrypted
    dentries
  ceph: add helpers for converting names for userland presentation
  ceph: add fscrypt support to ceph_fill_trace
  ceph: add support to readdir for encrypted filenames
  ceph: create symlinks with encrypted and base64-encoded targets
  ceph: make ceph_get_name decrypt filenames
  ceph: add fscrypt ioctls

 fs/ceph/Makefile            |   1 +
 fs/ceph/crypto.c            | 185 ++++++++++++++++++++++
 fs/ceph/crypto.h            | 101 ++++++++++++
 fs/ceph/dir.c               | 178 ++++++++++++++++-----
 fs/ceph/export.c            |  42 +++--
 fs/ceph/file.c              |  58 ++++---
 fs/ceph/inode.c             | 248 ++++++++++++++++++++++++++---
 fs/ceph/ioctl.c             |  93 +++++++++++
 fs/ceph/mds_client.c        | 303 ++++++++++++++++++++++++++++++------
 fs/ceph/mds_client.h        |  15 +-
 fs/ceph/super.c             |  80 +++++++++-
 fs/ceph/super.h             |  15 +-
 fs/ceph/xattr.c             |   5 +
 fs/crypto/fname.c           |  53 +++++--
 fs/crypto/fscrypt_private.h |   9 +-
 fs/crypto/hooks.c           |   6 +-
 fs/crypto/policy.c          |  34 +++-
 fs/inode.c                  |   1 +
 include/linux/fscrypt.h     |  10 ++
 19 files changed, 1263 insertions(+), 174 deletions(-)
 create mode 100644 fs/ceph/crypto.c
 create mode 100644 fs/ceph/crypto.h

-- 
2.30.2


             reply index

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-13 17:50 Jeff Layton [this message]
2021-04-13 17:50 ` [RFC PATCH v6 01/20] vfs: export new_inode_pseudo Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 02/20] fscrypt: export fscrypt_base64_encode and fscrypt_base64_decode Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 03/20] fscrypt: export fscrypt_fname_encrypt and fscrypt_fname_encrypted_size Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 04/20] fscrypt: add fscrypt_context_for_new_inode Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 05/20] ceph: crypto context handling for ceph Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 06/20] ceph: implement -o test_dummy_encryption mount option Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 07/20] ceph: preallocate inode for ops that may create one Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 08/20] ceph: add routine to create fscrypt context prior to RPC Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 09/20] ceph: make ceph_msdc_build_path use ref-walk Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 10/20] ceph: add encrypted fname handling to ceph_mdsc_build_path Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 11/20] ceph: decode alternate_name in lease info Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 12/20] ceph: send altname in MClientRequest Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 13/20] ceph: properly set DCACHE_NOKEY_NAME flag in lookup Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 14/20] ceph: make d_revalidate call fscrypt revalidator for encrypted dentries Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 15/20] ceph: add helpers for converting names for userland presentation Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 16/20] ceph: add fscrypt support to ceph_fill_trace Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 17/20] ceph: add support to readdir for encrypted filenames Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 18/20] ceph: create symlinks with encrypted and base64-encoded targets Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 19/20] ceph: make ceph_get_name decrypt filenames Jeff Layton
2021-04-13 17:50 ` [RFC PATCH v6 20/20] ceph: add fscrypt ioctls Jeff Layton
2021-04-19 10:09   ` Luis Henriques
2021-04-19 12:19     ` Jeff Layton
2021-04-19 19:54       ` Eric Biggers
2021-04-20  9:34         ` Luis Henriques
2021-04-20 11:45         ` Jeff Layton
2021-04-19 10:30 ` [RFC PATCH v6 00/20] ceph+fscrypt: context, filename and symlink support Luis Henriques
2021-04-19 12:23   ` Jeff Layton
2021-04-19 16:03     ` Luis Henriques
2021-04-19 16:28       ` Jeff Layton
2021-04-20 10:11         ` Luis Henriques
2021-04-20 15:52           ` Jeff Layton

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